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This section describes the methods associated with the Console Debugging API.
In this section
| Topic | Description |
|---|---|
Sends a message to the console if the expression provided evaluates to false. The message text color is red and it is prefaced by an error icon. |
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Clears messages from the console. |
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Create an incrementable counter that prints its value to the console. Use different countTitle parameters to create different counters. |
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An alias of console.log. |
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Prints the properties of an object to the console. |
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Logs an XML node object to the console. |
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Sends an error "message" to the console. The message text color is red and it is prefaced by an error icon. |
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Begins a collapsible group of console output. Initially displays expanded. |
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Begins a collapsible group of console output. Initially displays collapsed. |
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Ends the grouping started with a group or groupCollapsed method. |
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Sends an informational "message" to the console. The message is prefaced by an information icon. |
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Sends a log "message" to the console. The message is prefaced by the string "LOG". |
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Retrieves a Boolean value indicating whether the element is independently composed. |
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Starts recording profile information under the optional title provided. This command is equivalent to clicking the Start profiling button on the F12 developer tools Profile tab. |
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Stops recording profile information under the last report title. |
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Starts a timer. If you do not specify a name parameter, the name "default" will be used. |
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Ends a timer that was set using console.time() and logs the elapsed time to the console. If you do not specify a name parameter, the name "default" will be used. |
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Outputs a timestamp to the Console based on how long the current browser tab has been open. If used while a UI Responsiveness profiling session is recording, it will also create a user mark in the session timeline similar to a performance.mark. |
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Logs a stack trace to the console. |
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Sends a warning message to the console. The message is prefaced by the warning icon. |